Tool condition monitoring system

Abstract

The invention relates to a tool having a tool element which rotates in operation with at least one geometrically defined blade, in particular a material cutting tool element. The tool element is subject to an operating parameter in the operating condition. A measuring device is provided for determination and conversion of the operation parameter into a measured signal. A first measuring device cooperates with a first tool element in the operating condition such that essentially only a first operating parameter for the first tool element may be recorded by the first measuring device.

1. A tool comprising:
 a first material cutting tool element which rotates in operation with at least one geometrically defined blade, said tool element generating a first operating parameter relating directly to the rotation of the tool element in the operating condition, 
 a first measuring device being provided for determination and conversion of the first operating parameter generated by the first tool element into a measured signal, 
 at least a second tool element separate from the first tool element, 
 a second measuring device associated only with the second tool element and cooperating with the second tool element in operating condition in such a manner that essentially only an operating parameter generated by the second tool element may be detected by means of the second measuring device, and 
 wherein the first measuring device cooperates with the first tool element in operating condition in such a manner that essentially only the first operating parameter generated by the first tool element may be detected by means of the first measuring device. 
 
     
     
       2. The tool according to  claim 1 , wherein the first tool element is a cutting tool element for cutting a work piece selected from the following a cutting plate, a cutting element and a drilling head. 
     
     
       3. A machine tool, comprising a tool according to according to  claim 2 , wherein the machine tool has one or more controlled or regulated axes. 
     
     
       4. A tool according to  claim 1 , wherein the first measuring device is one of the following: a pressure sensor, a force sensor, a piezoelectric pressure sensor, a piezoelectric force sensor, piezoresistive pressure sensor, a piezoresistive force sensor, a Slim Line sensor, a temperature sensor, a piezoresistive temperature sensor, a resistance temperature sensor and a thermocouple. 
     
     
       5. A machine tool, comprising a tool according to according to  claim 4 , wherein the machine tool has one or more controlled or regulated axes. 
     
     
       6. A tool according to  claim 1  wherein the first measuring device is a measuring device for monitoring the condition of the first tool element. 
     
     
       7. A machine tool, comprising a tool according to according to  claim 6 , wherein the machine tool has one or more controlled or regulated axes. 
     
     
       8. A tool according to  claim 1 , wherein between the first tool element and the first measuring device a coupling element is provided for the transmission of the operating parameter. 
     
     
       9. A tool according to  claim 8  wherein the first tool has a basic body, the coupling element is formed as an intermediate disk, and the operating parameter is one of a force, a pressure and a force flow, which may be transferred from the first tool element via the coupling element to the first measuring device in such a manner that the operating parameter may be received by the basic body of the tool. 
     
     
       10. A machine tool, comprising a tool according to according to  claim 9 , wherein the machine tool has one or more controlled or regulated axes. 
     
     
       11. A machine tool, comprising a tool according to according to  claim 8 , wherein the machine tool has one or more controlled or regulated axes. 
     
     
       12. A tool according to  claim 1 , wherein a signal transmission means with a signal amplifier may be provided at the tool for the transmission of the measuring signal from the first measuring device to an analytical unit. 
     
     
       13. A tool according to  claim 12 , further comprising for transmitting the measured signal from the first measuring device, an antenna ring and one of: an optical signal transmitter, an acoustic signal transmitter, a mechanical signal transmitter and a multi-channel telemetry signal transmitter. 
     
     
       14. A machine tool, comprising a tool according to according to  claim 13 , wherein the machine tool has one or more controlled or regulated axes. 
     
     
       15. A machine tool, comprising a tool according to according to  claim 12 , wherein the machine tool has one or more controlled or regulated axes. 
     
     
       16. A tool according to  claim 1 , wherein the tool is a one of the following: a drill, a cutting tool, a blade front cutting head with piezoelectric single blade force measurement, a blade front cutting head with piezoresistive single blade force measurement, a hammer and a blade. 
     
     
       17. A machine tool, comprising a tool according to according to  claim 16 , wherein the machine tool has one or more controlled or regulated axes. 
     
     
       18. A machine tool, comprising a tool according to  claim 1  wherein the machine tool has at least one controlled or regulated axes. 
     
     
       19. A machine tool, comprising a tool according to according to  claim 1 , wherein the machine tool has at least two controlled or regulated axes.